The 22nd Chaos Communication Congress (22C3) is a four-day conference
on technology, society and utopia. The Congress offers
lectures and workshops on a multitude of topics including
(but not limited to) information technology, IT-security,
internet, cryptography and generally a critical-creative
attitude towards technology and the discussion about the
effects of technological advances on society.

The Chaos Communication Congress is the annual congress of the
Chaos Computer Club e.V. (CCC).
The Congress has established itself
as the "European Hacker Conference" bringing in people from all over Europe and even further away.

The congress not only addresses the techno geek but also those who
are interested in appliances and aftermathes. A part of the lectures will be held in English, the rest in German. The language
used for each lecture is clearly marked in the conference program.

If you experience network security problems that are clearly originating at the 22. Chaos Communication Congress network (IP
range: 81.163.0.0 - 81.163.255.254), please contact us at the number below. We will immediately try to resolve the problem
by technical measures on our site. This number is ONLY for the purpose of reporting serious network security problems, all other requests will NOT be answered
at this number.